LM2596S DC-DC Buck Converter Reduced Voltage Regulator Power Module 36V 24V 12V to 5V 2A Voltage Stabilizer with Digital Voltmeter Display

Description

The LM2596S DC-DC Buck Converter Module is a compact, adjustable step-down voltage regulator designed to provide stable, reliable power for a wide range of electronic projects. Built around the LM2596S switching regulator IC, this module combines adjustable output voltage, 2A maximum output current, and an integrated digital voltmeter display — making it an ideal solution for DIY power supplies, battery charging, LED drivers, and embedded system power.

The module accepts an input voltage range of 4.5V to 40V DC and produces an adjustable output voltage from 1.25V to 37V DC. The output voltage is set using the onboard multi-turn potentiometer, allowing precise adjustment for your specific application. The module can deliver up to 2A of output current (3A peak with adequate cooling), making it capable of powering motors, LED arrays, and small embedded systems.

A standout feature of this module is the integrated digital voltmeter display, which shows the real-time output voltage. This eliminates the need for an external multimeter during setup and allows continuous monitoring of your power system. The display is powered directly from the module‘s output, so it activates whenever the module is powered.

At the heart of the module is the LM2596S buck (step-down) converter IC, which operates at a fixed switching frequency of 150 kHz. The conversion efficiency reaches up to 92%, minimizing power loss and heat generation. The module includes built-in protection circuits including over-current protection and thermal shutdown, ensuring safe and reliable operation.

The module features screw terminals for secure input and output wiring, and the compact PCB design with mounting holes makes it easy to integrate into custom enclosures and project boxes. The digital voltmeter adds convenience for bench testing, battery monitoring, and field diagnostics.

The LM2596S is widely used in bench power supplies, battery charging systems, LED drivers, solar power applications, and automotive electronics where a stable, lower voltage is needed from a higher supply.

Whether you are building a custom power supply, charging batteries, or designing an LED driver, the LM2596S Step-Down Module provides a reliable, efficient foundation with the added convenience of an integrated display. It is suitable for individual makers, students, and businesses purchasing in bulk for product development or educational programs.

Features

• LM2596S buck converter IC — High-efficiency step-down regulator

• Wide input voltage range — 4.5V to 40V DC input

• Adjustable output voltage — 1.25V to 37V DC via onboard potentiometer

• High output current — Up to 2A continuous (3A peak with cooling)

• Integrated digital voltmeter — Real-time output voltage display

• High conversion efficiency — Up to 92%

• Fixed 150 kHz switching frequency — Compact design with smaller components

• Built-in protection — Over-current protection and thermal shutdown

• Screw terminals — Secure input and output wiring

• Compact PCB with mounting holes — Easy integration into enclosures

Technical Specifications